import hashlib


def md5(a):
    """
    :type a: str
    :rtype: str
    """
    md = hashlib.md5(a.encode("utf-8"))
    return md.hexdigest()

def makemd5(instr, randomdigits):
    """
    :type instr: str
    :type randomdigits: str
    :return:
    """
    return md5("20151126000006681" + instr + randomdigits + "bFASuS17lyOFgvUHHSoY")